diff --git a/python-barbicanclient-4.9.0.tar.gz b/python-barbicanclient-4.9.0.tar.gz
new file mode 100644
index 0000000..5e4bb46
Binary files /dev/null and b/python-barbicanclient-4.9.0.tar.gz differ
diff --git a/python-barbicanclient-5.1.0.tar.gz b/python-barbicanclient-5.1.0.tar.gz
deleted file mode 100644
index c95ddda..0000000
Binary files a/python-barbicanclient-5.1.0.tar.gz and /dev/null differ
diff --git a/python-barbicanclient.spec b/python-barbicanclient.spec
index 69bc999..d087235 100644
--- a/python-barbicanclient.spec
+++ b/python-barbicanclient.spec
@@ -1,11 +1,11 @@
 %global _empty_manifest_terminate_build 0
 Name:           python-barbicanclient
-Version:        5.1.0
+Version:        4.9.0
 Release:        1
 Summary:        Client Library for OpenStack Barbican Key Management API
 License:        Apache-2.0
 URL:            https://docs.openstack.org/python-barbicanclient/latest/
-Source0:        https://files.pythonhosted.org/packages/6b/95/55ce1287d9b5c46117333eaa9008bf8fb69c54969012f2301f793c87e579/python-barbicanclient-5.1.0.tar.gz
+Source0:        https://files.pythonhosted.org/packages/46/f5/423537ca1887ed4554581184fbcee91a7795b62491a63bf66648b8fd0730/python-barbicanclient-4.9.0.tar.gz
 BuildArch:      noarch
 %description
 python-barbicanclient This is a client for the Barbican.
@@ -49,7 +49,7 @@ Provides:       python3-barbicanclient-doc
 python-barbicanclient This is a client for the Barbican.
 
 %prep
-%autosetup -n python-barbicanclient-5.1.0
+%autosetup -n python-barbicanclient-%{version}
 
 %build
 %py3_build
@@ -91,9 +91,14 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Tue Nov 16 2021 OpenStack_SIG <openstack@openeuler.org> - 4.9.0-1
+- Downgrade the version to 4.9.0
+
 * Wed Jul 14 2021 OpenStack_SIG <openstack@openeuler.org> - 5.1.0-1
 - Upgrade to version 5.1.0
+
 * Thu Jan 21 2021 zhangy1317 <zhangy1317@foxmail.com>
 - Add BuildRequires python3-pip
+
 * Fri Jan 08 2021 Python_Bot <Python_Bot@openeuler.org>
 - Package Spec generated